释义 |
WordReference Random House Unabridged Dictionary of American English © 2024four-cy•cle (fôr′sī′kəl, fōr′-),USA pronunciation adj. - Automotive, Mechanical Engineeringnoting or pertaining to an internal-combustion engine in which a complete cycle in each cylinder requires four strokes, one to draw in air or an air-fuel mixture, one to compress it, one to ignite it and do work, and one to scavenge the cylinder.
Also, four-stroke. Cf. two-cycle. |